System and method for processing diagnostic message of vehicle

Abstract

A system for processing a diagnostic message of a vehicle includes a first external diagnosis device included in a D domain, an internal diagnosis device included in an M domain, a second external diagnosis device included in a G domain, and a vehicle gateway transmitting a diagnostic result corresponding to a request for diagnosis only to a domain including a diagnosis device requesting the diagnosis when the request for the diagnosis is received from one of the first external diagnosis device, the internal diagnosis device, or the second external diagnosis device.

What is claimed is: 
     
       1. A system for processing a diagnostic message of a vehicle, the system comprising:
 a vehicle network configured to include a first domain, a second domain, and a third domain; 
 a first external diagnosis device connected to the first domain through an on board diagnostics (OBD) II port for communication with a vehicle gateway; 
 an internal diagnosis device connected to the second domain for communication with the vehicle gateway; 
 a second external diagnosis device connected to the third domain through a charging port for communication with the vehicle gateway; and 
 the vehicle gateway configured to:
 receive a request for diagnosis from one of the first external diagnosis device, the internal diagnosis device, or the second external diagnosis device; 
 record information on the domain connected to the diagnosis device requesting the diagnosis; 
 transmit the request for diagnosis to an electronic control unit (ECU); 
 receive a diagnostic message corresponding to the request for diagnosis from the ECU; and 
 transmit the diagnostic message corresponding to the request for diagnosis only to the recorded domain connected to the diagnosis device that requested the diagnosis. 
 
 
     
     
       2. The system of  claim 1 , wherein the vehicle gateway includes a routing database configured to record the information on the domain connected to the diagnosis device requesting the diagnosis. 
     
     
       3. The system of  claim 1 , wherein the vehicle gateway is further configured to perform a switch between a basic diagnostic mode for receiving the request for diagnosis from the internal diagnosis device, a first diagnostic mode for receiving the request for diagnosis from the first external diagnosis device, and a second diagnostic mode diagnosis device for receiving the request for diagnosis from the second external diagnosis device. 
     
     
       4. The system of  claim 3 , wherein the vehicle gateway sets a diagnostic mode to the basic diagnostic mode in an initial operation when the vehicle is started. 
     
     
       5. The system of  claim 3 , wherein the vehicle gateway switches to the first diagnostic mode when the request for diagnosis is received from the first external diagnosis device in the basic diagnostic mode, and the vehicle gateway switches to the second diagnostic mode when the request for diagnosis received from the second external diagnosis device in the basic diagnostic mode. 
     
     
       6. The system of  claim 3 , wherein the vehicle gateway switches to the second diagnostic mode when the request for diagnosis is received from the second external diagnosis device in the first diagnostic mode, and the vehicle gateway switches to the first diagnostic mode when the request for diagnosis is received from the first external diagnosis device in the second diagnostic mode. 
     
     
       7. The system of  claim 3 , wherein the vehicle gateway does not switch to the basic diagnostic mode although the vehicle gateway receives the request for diagnosis from the internal diagnosis device, after switching from the basic diagnostic mode to the first diagnostic mode or after switching from the basic diagnostic mode to the second diagnostic mode. 
     
     
       8. The system of  claim 3 , wherein, the vehicle gateway maintains the first diagnostic mode for a reference time although the vehicle gateway receives the request for diagnosis from the second external diagnosis device after switching from the basic diagnostic mode to the first diagnostic mode or after switching from the second diagnostic mode to the first diagnostic mode. 
     
     
       9. The system of  claim 3 , wherein the vehicle gateway immediately switches to the first diagnostic mode when receiving the request for the diagnosis from the first external diagnosis device after switching from the basic diagnostic mode to the second diagnostic mode or after switching from the first diagnostic mode to the second diagnostic mode. 
     
     
       10. A method of processing a diagnostic message of a vehicle, the method comprising:
 including, by a vehicle network, a first domain to which a first external diagnosis device is connected through an on board diagnostics (OBD) II port, a second domain to which an internal diagnosis device is connected, and a third domain to which a second external diagnosis device is connected through a charging port; 
 receiving, by a vehicle gateway, a request for diagnosis from one of the first external diagnosis device, the internal diagnosis device, or the second external diagnosis device; 
 recording, by the vehicle gateway, information on the domain connected to the diagnosis device requesting the diagnosis; 
 transmitting, by the vehicle gateway, the request for diagnosis to an electronic control unit (ECU); 
 receiving, by the vehicle gateway, a diagnosis message corresponding to the request for diagnosis from the ECU; and 
 transmitting, by the vehicle gateway, the diagnostic message corresponding to the request for diagnosis only to the recorded domain connected to the diagnosis device that requested the diagnosis. 
 
     
     
       11. The method of  claim 10 , wherein the transmitting of the diagnostic message only to the recorded domain connected to the diagnosis device that requested the diagnosis includes:
 performing a switch between a basic diagnostic mode for receiving the request for diagnosis from the internal diagnosis device, a first diagnostic mode for receiving the request for diagnosis from the first external diagnosis device, and a second diagnostic mode diagnosis device for receiving the request for diagnosis from the second external diagnosis device. 
 
     
     
       12. The method of  claim 11 , wherein the performing of the switch includes:
 setting a diagnostic mode to the basic diagnostic mode in an initial operation when the vehicle is started. 
 
     
     
       13. The method of  claim 11 , wherein the performing of the switch includes:
 switching to the first diagnostic mode when the request for diagnosis is received by the vehicle gateway from the first external diagnosis device in the basic diagnostic mode; and 
 switching to the second diagnostic mode when the request for diagnosis is received by the vehicle gateway from the second external diagnosis device in the basic diagnostic mode. 
 
     
     
       14. The method of  claim 11 , wherein the performing of the switch includes:
 switching to the second diagnostic mode when the request for diagnosis is received by the vehicle gateway from the second external diagnosis device in the first diagnostic mode; and 
 switching to the first diagnostic mode when the request for diagnosis is received by the vehicle gateway from the first external diagnosis device in the second diagnostic mode. 
 
     
     
       15. The method of  claim 11 , wherein the performing of the switch includes:
 not switching to the basic diagnostic mode although the request for the diagnosis is received by the vehicle gateway from the internal diagnosis device after switching from the basic diagnostic mode to the first diagnostic mode or after switching from the basic diagnostic mode to the second diagnostic mode. 
 
     
     
       16. The method of  claim 11 , wherein the performing of the switch includes:
 maintaining the first diagnostic mode for a reference time although the vehicle gateway receives the request for diagnosis from the second external diagnosis device after switching from the basic diagnostic mode to the first diagnostic mode or after switching from the second diagnostic mode to the first diagnostic mode. 
 
     
     
       17. The method of  claim 11 , wherein the performing of the switch includes:
 immediately switching to the first diagnostic mode when the vehicle gateway receives the request for diagnosis from the first external diagnosis device after switching from the basic diagnostic mode to the second diagnostic mode or after switching from the first diagnostic mode to the second diagnostic mode.